What does a dose-response curve represent?

A dose-response curve illustrates how varying doses of a drug correlate with the magnitude of the therapeutic or treatment effect produced. This graphical representation allows clinicians and researchers to understand the relationship between the quantity of the drug administered and the physiological response it elicits. As the dose increases, one typically observes a change in the effectiveness of the treatment, which can help establish the optimal dosage for achieving the desired outcome while minimizing adverse effects.

This curve is essential in determining the therapeutic window, identifying the maximum effect (efficacy), and understanding how the body responds to different doses. Such insights are crucial for safe and effective drug administration in clinical practice.